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Manufacturers Index - Farrar & Trefts
Patents
This page contains information on patents issued to this manufacturer.

Submitting Patent Information

If you find a patent number or patent date by this manufacturer that is not on this list, please contact the Site Historian.


Key to Links for Patent Information

USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
59,764 Nov. 20, 1866 Steam Safety Valve Chilion M. Farrar Buffalo, NY
124,801 Mar. 19, 1872 Improvement in Steam Engines Chilion M. Farrar Buffalo, NY
166,758 Aug. 17, 1875 Rotary Balanced Valve Chilton M. Farrar Buffalo, Erie County, NY James Sangster patent attorney.
335,197 Feb. 02, 1886 Fleshing and Unhairing Machine William M. Hoffman Buffalo, NY
335,198 Feb. 02, 1886 Putting Out and Striking Out Machine for Hides or Skins William M. Hoffman Buffalo, NY
782,875 Feb. 21, 1905 Forge Henry Price Buffalo, Erie County, NY
941,531 Nov. 30, 1909 Manhole Cover Plate Edward Oldman Buffalo, NY